4449280 has 88 divisors (see below), whose sum is σ = 11790720. Its totient is φ = 1597440.

The previous prime is 4449259. The next prime is 4449283. The reversal of 4449280 is 829444.

It is a tau number, because it is divible by the number of its divisors (88).

It is not an unprimeable number, because it can be changed into a prime (4449283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56281 + ... + 56359.

Almost surely, 2^4449280 is an apocalyptic number.

4449280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4449280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5895360).

4449280 is an abundant number, since it is smaller than the sum of its proper divisors (7341440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4449280 is a wasteful number, since it uses less digits than its factorization.

4449280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 4449280 is about 2109.3316477027. The cubic root of 4449280 is about 164.4737442043.

The spelling of 4449280 in words is "four million, four hundred forty-nine thousand, two hundred eighty".